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Study key concepts including VSEPR, polarity, hybrid orbitals, molecular interactions, bonding, molecular orbitals, stoichiometry, limiting reagent, and more for the upcoming exam. Prepare with detailed explanations and examples.
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Study Topics for Exam 3 From Chapters 3 & 8
Chapter 8 • VSEPR yields SHAPE • SHAPE and yield POLARITY • POLARITY yields Molecular Interactions • VALENCE BOND, perfect electron sharing • HYBRID ORBITALS yield SHAPE • sp sp2 sp3 dsp3 d2sp3 • (twist) and (rigid) BONDING
Chapter 8 continued • MOLECULAR ORBITALS • BONDING vs ANTIBONDING • BOND ORDER ½(#bonding e- - #antibonding e-) • STRENGTH and LENGTH • Electrons UNPAIRED yield MAGNETISM (e.g., O2) • DELOCALIZATION • METAL and SEMIMETAL BONDING • BANDS and BAND GAPS • DOPING
Chapter 3 • STOICHIOMETRY • MOLES and MASSES (formula & molecular) • EMPIRICAL vs. MOLECULAR formulae • % COMPOSITION • Molar CONVERSION Factors • Weight-to-Weight CALCULATIONS • LIMITING REAGENT • % YIELD